diff options
Diffstat (limited to 'Xamarin.Forms.Platform.WP8/ButtonRenderer.cs')
| -rw-r--r-- | Xamarin.Forms.Platform.WP8/ButtonRenderer.cs | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WP8/ButtonRenderer.cs b/Xamarin.Forms.Platform.WP8/ButtonRenderer.cs new file mode 100644 index 00000000..886a7768 --- /dev/null +++ b/Xamarin.Forms.Platform.WP8/ButtonRenderer.cs @@ -0,0 +1,119 @@ +using System; +using System.ComponentModel; +using System.Windows; +using System.Windows.Controls; +using System.Windows.Media; +using System.Windows.Media.Imaging; +using WButton = System.Windows.Controls.Button; +using WImage = System.Windows.Controls.Image; +using WThickness = System.Windows.Thickness; + +namespace Xamarin.Forms.Platform.WinPhone +{ + public class ButtonRenderer : ViewRenderer<Button, WButton> + { + bool _fontApplied; + + protected override void OnElementChanged(ElementChangedEventArgs<Button> e) + { + base.OnElementChanged(e); + + var button = new WButton(); + button.Click += HandleButtonClick; + SetNativeControl(button); + + UpdateContent(); + + if (Element.BackgroundColor != Color.Default) + UpdateBackground(); + + if (Element.TextColor != Color.Default) + UpdateTextColor(); + + if (Element.BorderColor != Color.Default) + UpdateBorderColor(); + + if (Element.BorderWidth != 0) + UpdateBorderWidth(); + + UpdateFont(); + } + + protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e) + { + base.OnElementPropertyChanged(sender, e); + + if (e.PropertyName == Button.TextProperty.PropertyName || e.PropertyName == Button.ImageProperty.PropertyName) + UpdateContent(); + else if (e.PropertyName == VisualElement.BackgroundColorProperty.PropertyName) + UpdateBackground(); + else if (e.PropertyName == Button.TextColorProperty.PropertyName) + UpdateTextColor(); + else if (e.PropertyName == Button.FontProperty.PropertyName) + UpdateFont(); + else if (e.PropertyName == Button.BorderColorProperty.PropertyName) + UpdateBorderColor(); + else if (e.PropertyName == Button.BorderWidthProperty.PropertyName) + UpdateBorderWidth(); + } + + void HandleButtonClick(object sender, RoutedEventArgs e) + { + Button buttonView = Element; + if (buttonView != null) + ((IButtonController)buttonView).SendClicked(); + } + + void UpdateBackground() + { + Control.Background = Element.BackgroundColor != Color.Default ? Element.BackgroundColor.ToBrush() : (Brush)System.Windows.Application.Current.Resources["PhoneBackgroundBrush"]; + } + + void UpdateBorderColor() + { + Control.BorderBrush = Element.BorderColor != Color.Default ? Element.BorderColor.ToBrush() : (Brush)System.Windows.Application.Current.Resources["PhoneForegroundBrush"]; + } + + void UpdateBorderWidth() + { + Control.BorderThickness = Element.BorderWidth == 0d ? new WThickness(3) : new WThickness(Element.BorderWidth); + } + + void UpdateContent() + { + if (Element.Image != null) + { + Control.Content = new StackPanel + { + Orientation = Orientation.Horizontal, + Children = + { + new WImage { Source = new BitmapImage(new Uri("/" + Element.Image.File, UriKind.Relative)), Width = 30, Height = 30, Margin = new WThickness(0, 0, 20, 0) }, + new TextBlock { Text = Element.Text } + } + }; + } + else + Control.Content = Element.Text; + } + + void UpdateFont() + { + if (Control == null || Element == null) + return; + + if (Element.Font == Font.Default && !_fontApplied) + return; + + Font fontToApply = Element.Font == Font.Default ? Font.SystemFontOfSize(NamedSize.Medium) : Element.Font; + + Control.ApplyFont(fontToApply); + _fontApplied = true; + } + + void UpdateTextColor() + { + Control.Foreground = Element.TextColor != Color.Default ? Element.TextColor.ToBrush() : (Brush)System.Windows.Application.Current.Resources["PhoneForegroundBrush"]; + } + } +}
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